Spindle-driving mechanism.



II. G. CABLE.

SPINDLE DRIVING IVIECHANISIVI.

APPLICATION man ocr. 27. 19:4.

Lm @L Patented. Jn. 23, 1917.

ien inm ROBERT GRANVILLE CABLE, OF WOONSOCKET, RHODE ISLAND.

SPINDLE-DRIVING MECHANISM.

To all whom t may concern: l

Be it known that l, ROBERT Gr. CABLE, citizen of the United States,residing at l/Voonsocket, Rhode lsland, have invented certain new anduseful Improvements in Spindle- Driving Mechanism, of which thefollowing is a specification.

My present invention relates to improvements in spindle drivingmechanism such as used for driving spindles of spinning and twistingmachines.

Among the objects of the invention are to provide a device which willreduce the load on the spindles to the minimum amount, thus effecting asaving in power and which will make the twists even on all bobbins andsave the waste caused by soft bobbins, and the difficulties arising fromuneven twists and winding.

`With these and other objects in view, the invention includes the novelfeatures of construction and arrangement and combination of partshereinafter described and particularly defined by the appended claims.

An embodiment of the invention is illus` trated in the accompanyingdrawings, in which- Figure 1 is a plan view of a driving drum with tworows of spindles with my improved guiding` and tension means appliedthereto, and Figs. 2 and 3 are detail views in sectional elevation, Fig.2 being a section on line 2--2 of Fig. 1.

Referring by reference characters to these drawings, the numeral 1designates the driving drum of the ordinary or any desired construction,which may be driven in any suitable inanner, and 2 the spindles, each ofwhich is provided with a pulley 2a.

3 designates the driving band which is passed alternately around thedrum and spindles. Where two rows of spindles are driven from a singledrum, as shown in the drawings, the endless driving band would passalternately around the drum and the successive spindles on one side, andthence alternately around the drum and the successive spindles on theother side. ln order to properly guide the band and maintain the bestdegree of tension thereon without unduly loading the spindles, l providethe following described mechanism: A rod or bar 4L is mounted insuitable bearings 5 and extends longitudinally between one row ofspindles and the drum, and parallel thereto, and at one end of a sectionof spindlesthis Specicaton of Letters Patent. Pgmhm'dgd Jan, 23,119:11?,

Application led October 27, 1914.

Serial No. 868,8236.

bar carries an adjustable bracket 6 which supports an idle guide roller7 around which the endless band passes. At the opposite end-of the rowof spindles and in proximity to the point where the driving band finallyleaves the drum before passing to the end spindle of the section torecommence its travel around the spindle and drum and at the point which1 term the slack end of the device, l provide a vertical rod or bar 8which is adjustably mounted on the longitudinal bar 4 by inea-ns of abracket 9. rlhe bracket 9 is adapted to be adjustably clamped to thelongitudinal bar or rod by a set screw 9u, and the vertical bar or rodis capable of being adjusted vertically and clamped in any desiredposition by means of a set screw 9b. rfhe lower end of the vertical rodcarries a laterally extending adjustable arm 10 upon which is journaleda guide pulley 11 around which the endless band travels after finallyleaving the cylinder and before passing to the end spindle pulley. rlhevertical bar or rod carries also at a suitable point above the guidepulley 11 a forked bracket 12 which is adjustably mounted on thevertical rodV and in the forked portion of which is mounted a pivotedarm 13, the end of which carries a tension pulley 14. The upper end ofthe vertical rod has a laterally extending arm 15 to which is connectedone end of a tension spring 1G, the other end of which is connected tothe pivoted arm 13. The portion of the band between the drum and the endspindle pulley, and which constitutes the slack portion of the belt,after leaving the drum is passed over this tension pulley 141 and underthe stationary guide pulley 11 and the upward pull of the spring on thepivoted arm maintains the proper tension on the belt without undulyloading any of the spindles. By reason of the several adjustments of theparts hereinbefore referred to, the device may be quickly adapted formaking opposite twists by changing the bands on the spindles instead ofchanging the direction of rotation of the driving cylinder, which isdesirable in some types of machines. By placing the tension pulley whereit acts only on the slack portion of the belt I am enabled to maintainsuiicient tension by means of a much lighter spring than could be usedif the spring had to carry part of the spinning pull. 1t will beunderstood that while l have shown my improved driving tension mechanismin connection with a drum and two rows of spindles, it is equallyapplicable to a construction in which the drum drives but a single rowof spindles.

It will be understood that a spinning machine may have from one hundredand fty to two hundred spindles. Too large a number can not practicallybe run by a single driving band, and so I divide the spindles up intosections each comprising preferably not more than twenty spindles, eachsection having its own endless band and tension device. In the drawing Ihave illustrated the band of only one section, but it will be obviousthat this could be repeated as often as the number of spindles andlength of driving drum required.

I claim as my invention 1. In combination with a driving drum andspindles, an endless band passing alternately and successively aroundsait` drum and said spindles, a stationary guide pulley having its axissubstantially parallel to thev axis of the drum and around which saidband passes at the slack end of the drum, a pivotally supported armcarrying a pulley engaging the portion of the band between said drum andstationary guide pulley and swinging in a plane perpendicular to theaxis of the drum and a spring exerting tension on said arm.

2. In combination with a driving drum and spindles, an endless bandpassing alternately around said drum and successively around saidspindles, a bar arranged parallel with said drum, a vertically disposedrod carried by said bar, a stationar guide pulley carried by the lowerpart of said rod, around which said band passes, an arm pivomllySupported from said upper portion of said vertical rod and carrying apulley engaging the portion of the band between said drinn andstationary guide pulley, and means exerting tension on said arm.

3. In combination with a driving drum and spindles, a stationary guidepulley in proximity to the drum at one end of the spindles, an endlessdriving band passing around said. guide pulley and alternately aroundsaid drum and said spindles, a sian tionary guide pulley between thedrum and spindles at the opposite end, and a tension pulley engaging theslack ot the belt between said last named guide pulley und the drum.

In testimony whereof, I aiix my signature in presence of two witnesses.

ROBERT GRANVILLE CABLE.

Witnesses:

SAMUEL FAnRoN, CHAs. E. BALLON.

Copies of this patent may be obtained for ve cents each, by addressingthe Commissioner of Patents. Washington, D. C.

